Yep I want one and suspect odds are good we will get it on Wii U.
There seem to be generally two kinds of Nintendo franchises.
Type 1: bread n' butter titles where Nintendo wants one of its type on every single console, to provide that console with the stock experience. These never change too much, and evolve slowly. These are games like Mario Kart, Mario Party, 2D Mario, Pokemon, and a basic assortment of puzzle games like Tetris. Also Animal Crossing.
Type 2: what might be called "experience" games where Nintendo won't make a new one until they feel an evolution of the experience is possible. These may skip a generation if no significant expansions of the concept are possible due to timing of the release or hardware limitations. I think Zelda is actually in this category - every Zelda tries to add some big new idea, to be a unique experience. Skyward Sword is obvious, like it or hate it. But other games are in this category too. F-Zero, Pilotwings, Starfox, Wave Race, and, actually, 3D Mario.
There is likely little Nintendo could have done to create a superior and unique Wave Race experience (or F-Zero experience) on Wii due to hardware constraints, and the fact that the GC titles played on the Wii. The new console would provide waaaaaay more potential for creating a world of dynamic water and weather. Much bigger environments, many more entrants in a single race. It could be crazy with something like a 12-16 person race. Heck, they could try open world, where you cruise around a chain of islands with resorts on them, entering races as you see fit, and play around with exploration in the meantime.
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